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SQUARE D Busway Plug In Unit: Fusible, 30 A Amps, 277/480/600V AC, PQ - PQ- and PQB -Type, Square D Fusible Bus Plugs
SQUAREPQ- and PQB -Type, Square D Fusible Bus Plugs

SQUARE D Busway Plug In Unit: Fusible, 30 A Amps, 277/480/600V AC, PQ

The SQUARE D Busway Plug In Unit is a PQ- and PQB-Type fusible bus plug rated for 30 A at 277/480/600V AC. It features an H/K/R fuse class and is designed for use with SE Square D I-Line and I-Line II Busway systems.

SKU 3G-OTH-127506

Brand
SQUARE
Item
D Busway Plug In Unit: Fusible, 30 A Amps, 277/480/600V AC, PQ
Category
PQ- and PQB -Type, Square D Fusible Bus Plugs
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Technical Specifications

SQUARE
Manufacturer Part Number
PQ4603G
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SQUARE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SQUARE D Busway Plug In Unit is a PQ- and PQB-Type fusible bus plug rated for 30 A at 277/480/600V AC. It features an H/K/R fuse class and is designed for use with SE Square D I-Line and I-Line II Busway systems.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the SQUARE D Busway Plug In Unit PQ4603G used for?

The SQUARE D PQ4603G is a fusible bus plug used to tap power from Square D I-Line and I-Line II busway systems. It provides overcurrent protection for branch circuits in industrial and commercial electrical distribution, rated 30 A at 277/480/600V AC with H/K/R fuse class.

What are the specifications of the SQUARE D PQ4603G bus plug?

The SQUARE D PQ4603G is a PQ-Type fusible bus plug rated 30 A at 277/480/600V AC. It accepts H/K/R fuse class and is designed for SE Square D I-Line and I-Line II Busway. The manufacturer part number is PQ4603G.

Where to buy SQUARE D busway plug in units worldwide?

3G Electric supplies the SQUARE D PQ4603G bus plug to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery for international orders. Contact us for pricing and lead time on this Square D component.

How to install a SQUARE D PQ bus plug on I-Line busway?

Installation of the SQUARE D PQ4603G bus plug requires the busway to be de-energized. Align the plug's stab assembly with the busway slot, engage the hook, and tighten the clamping mechanism per Square D instructions. Always follow local electrical codes and use qualified personnel.

Used in

Common applications for SQUARE
Industrial power distribution — Square D HU362AWC non-fusible safety switch for disconnecting three-phase loads up to 60 A.
Busway branch circuits — Square D PQ4203G fusible bus plug for overcurrent protection in I-Line busway systems.
Panelboard surge protection — Square D HL4IMA24C SPD for transient voltage suppression in 277/480V AC wye systems.
Power distribution in control panels — Square D 9080LBA263106 open distribution block for splitting 400 kcmil conductors.
Machine control stations — Square D 9001BG303 push-button station for open/close/stop operations in industrial machinery.
Motor starting and protection — Square D 8536SBG2V02H30S NEMA starter for non-reversing three-phase motor control up to 18 A.

SQUARE Products

3G Electric supplies SQUARE pq- and pqb -type, square d fusible bus plugs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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SQUARE D Busway Plug In Unit: Fusible, 60 A Amps, 600V AC, PQ, H/K/R, 3 Phase, 3 Wire with Ground (MPN PQ3606G). Key specifications — attr195666: 600V AC; attr195667: PQ; attr195668: R; attr195669: SE Square D I-Line and I-Line II Busway; attr211121: SQUARE D.
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SQUARE D Busway Plug In Unit: Fusible, 100 A Amps, 600V AC, PQ, H/K/R, 3 Phase, 3 Wire with Ground (MPN PQ3610G). Key specifications — attr195666: 600V AC; attr195667: PQ; attr195668: K; attr195669: SE Square D I-Line and I-Line II Busway; attr211121: SQUARE D.
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SQUARE D Busway Plug In Unit: Fusible, 100 A Amps, 600V AC, PQ, H/K/R, 3 Phase, 3 Wire with Ground (MPN PQ3610G). Key specifications — attr195666: 600V AC; attr195667: PQ; attr195668: K; attr195669: SE Square D I-Line and I-Line II Busway; attr211121: SQUARE D.
SQUARE D Busway Plug In Unit: Fusible, 200 A Amps, 240V AC, PS, H/K/R, 3 Phase, 4 Wire with Ground (MPN PS4220G). Key specifications — attr195666: 240V AC; attr195667: PS; attr195668: R; attr195669: SE Square D I-Line and I-Line II Busway on Vertical Riser Applications Only; attr211121: SQUARE D.
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SQUARE D Busway Plug In Unit: Fusible, 200 A Amps, 240V AC, PS, H/K/R, 3 Phase, 4 Wire with Ground (MPN PS4220G). Key specifications — attr195666: 240V AC; attr195667: PS; attr195668: R; attr195669: SE Square D I-Line and I-Line II Busway on Vertical Riser Applications Only; attr211121: SQUARE D.
SQUARE D Busway Plug In Unit: Fusible, 60 A Amps, 277/480/600V AC, PQ, H/K/R (MPN PQ4606G). Key specifications — attr195666: 277/480/600V AC; attr195667: PQ; attr195668: H; attr195669: SE Square D I-Line and I-Line II Busway; attr211121: SQUARE D.
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SQUARE D Busway Plug In Unit: Fusible, 60 A Amps, 277/480/600V AC, PQ, H/K/R (MPN PQ4606G). Key specifications — attr195666: 277/480/600V AC; attr195667: PQ; attr195668: H; attr195669: SE Square D I-Line and I-Line II Busway; attr211121: SQUARE D.